Audiometric Services by petrehn ^New!
Ohio, USA Audiometric Services by petrehn specializes in audiometric equipment calibration and repair. We calibrate all equipments to the applicable ANSI standard that meets/exceeds OSHA 1983 exhaustive calibration specifications. We calibrate air conduction audiometer, tympanometer, earscan, automatic/microp More...
www.audiometricservices.com

Roland Consult
Germany Roland Consult develops & distributes complete modern, intelligent systems for electrophysiological diagnostics. Our product line comprises of electrodes, needle electrodes, pastes, gels, paper and special accessories. Our systems are modular & have many extra features in software and hardware. More...
www.roland-consult.de